Related Party Transactions (Details)				1 Months Ended		3 Months Ended					1 Months Ended	3 Months Ended			3 Months Ended
	Mar. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)		Aug. 31, 2011 Beijing JiYa Semiconductor Material Co Ltd [Member] USD ($) EquityMethodInvestees	Aug. 31, 2011 Beijing JiYa Semiconductor Material Co Ltd [Member] CNY	Mar. 31, 2013 Beijing JiYa Semiconductor Material Co Ltd [Member] USD ($) Installments	Mar. 31, 2012 Beijing JiYa Semiconductor Material Co Ltd [Member] USD ($)	Mar. 31, 2012 Beijing JiYa Semiconductor Material Co Ltd [Member] CNY	Mar. 31, 2013 Beijing JiYa Semiconductor Material Co Ltd [Member] CNY	Dec. 31, 2012 Beijing JiYa Semiconductor Material Co Ltd [Member] USD ($)	Aug. 31, 2011 Nanjing Jin Mei Gallium Co Ltd [Member]	Mar. 31, 2013 Nanjing Jin Mei Gallium Co Ltd [Member] USD ($)	Mar. 31, 2012 Nanjing Jin Mei Gallium Co Ltd [Member] USD ($)	Mar. 31, 2013 Nanjing Jin Mei Gallium Co Ltd [Member] CNY	Sep. 30, 2012 Beijing Tongmei Xtal Technology [Member] USD ($)	Sep. 30, 2012 Beijing Tongmei Xtal Technology [Member] CNY
Related Party Transaction [Line Items]
Amount of loan under note agreement				$ 1,700,000	10,485,200
Number of equity method investees to whom loan was granted				1	1
Amount of loan to related parties				789,000	4,959,000		880,000	5,526,200
Maturity date				May 31, 2014	May 31, 2014						Dec. 31, 2013
Term of Loan				2 years 10 months	2 years 10 months
Number of installments						3
First installment due in Dec 2012						417,000			2,620,000
Second installment due in Dec 2013						834,000			5,240,000
Final installment due in May 2014						418,000			2,625,200
Amended first installment due in June 2013						417,000			2,620,000
Related party notes receivable - short term	2,047,000	2,036,000	[1]			1,300,000			7,860,000			796,000		5,000,000
Related party notes receivable - long term	418,000	416,000	[1]			418,000			2,625,200
Interest rate (in hundredths)											6.70%
Income from agency sales						10,000	0					65,000	45,000
Accrued liabilities	9,434,000	7,202,000	[1]			355,000				257,000
Accounts payable	6,581,000	5,894,000	[1]			795,000				1,100,000
Payments to purchase materials															$ 118,000	740,924

[1] The condensed consolidated balance sheet at December 31, 2012 has been derived from the audited consolidated financial statements at that date.